YIDINGAIR FILTRATION
Product overview
What it is and where it fits.
This multi-pocket bag filter uses micro-glass fibre media backed with nonwoven material, sewn into evenly spaced pockets. It serves the medium-efficiency stage of air handling units, where a stable efficiency and good dust-holding capacity are required.
Seams and the joint between media and the metal frame are sealed to reduce bypass. Sizes, pocket counts and lengths follow the same modules as our synthetic pocket filter, so the two are interchangeable in the same housing.
- Filter type
- Multi-pocket bag filter, glass-fibre media
- Efficiency grades (ASHRAE 52.1 dust-spot)
- 40–45%, 60–65%, 80–85%, 90–95%
- MERV equivalent (catalogue)
- MERV 9, 11, 13, 14
- Face sizes
- 289 × 595 mm and 595 × 595 mm
- Pocket lengths
- 381, 535, 762, 914 mm
- Pockets
- 3, 6 or 12
- Face velocity
- Up to 750 ft/min
- Max. continuous temperature
- 60 °C
Typical applications
- Medium-efficiency stage in air handling units
- Pre-filters protecting HEPA filters in cleanroom supply air
- Hospitals, laboratories and commercial buildings
Construction & performance
Pocket construction
Micro-glass fiber media backed with nonwoven material is sewn into evenly spaced pockets. Seams and the media-to-metal-frame interface are sealed to reduce bypass.
Efficiency & airflow
Dust-spot grades 40–45%, 60–65%, 80–85% and 90–95% (ASHRAE 52.1), for face velocities up to 750 ft/min (3.8 m/s).
Selection guide
How to choose.
Glass fibre when efficiency must stay stable
Glass-fibre media captures particles mechanically, so its efficiency does not depend on an electrostatic charge. Choose it when the specified efficiency must hold throughout service life.
Same modules as synthetic pockets
Face sizes, pocket counts and lengths match the AR202 synthetic pocket filter, so you can compare the two in the same housing.
Technical data
Specifications & dimensions.
Rated airflow in m³/h, pressure drop in Pa, actual dimensions in mm, nominal sizes in inches. Swipe tables sideways on small screens.
| Dust-spot efficiency | Gravimetric efficiency | MERV |
|---|---|---|
| 90–95% | > 99% | 14 |
| 80–85% | > 98% | 13 |
| 60–65% | > 97% | 11 |
| 40–45% | > 96% | 9 |
| Test standard: ASHRAE 52.1-1992 / EN 779 | MERV: ASHRAE 52.2 | |
| Efficiency (%) | Nominal size (in) | Actual size (mm) | Pocket count | Rated airflow (m³/h) | Pressure drop (Pa) | ||
|---|---|---|---|---|---|---|---|
| Dust-spot efficiency | Gravimetric efficiency | Initial pressure drop | Final pressure drop | ||||
| 90–95 | > 99 | 12 × 24 × 15 | 289 × 595 × 381 | 3 | 1070 | 177 | 250 |
| 6 | 1700 | 157 | |||||
| 12 × 24 × 21 | 289 × 595 × 535 | 3 | 1700 | 189 | |||
| 6 | 2130 | 152 | |||||
| 12 × 24 × 30 | 289 × 595 × 762 | 3 | 2130 | 169 | |||
| 6 | 2130 | 107 | |||||
| 12 × 24 × 36 | 289 × 595 × 914 | 3 | 2130 | 167 | |||
| 6 | 2550 | 137 | |||||
| 24 × 24 × 15 | 595 × 595 × 381 | 6 | 2130 | 177 | |||
| 12 | 3400 | 157 | |||||
| 24 × 24 × 21 | 595 × 595 × 533 | 6 | 3400 | 189 | |||
| 12 | 4250 | 152 | |||||
| 24 × 24 × 30 | 595 × 595 × 762 | 6 | 4250 | 169 | |||
| 12 | 4250 | 107 | |||||
| 24 × 24 × 36 | 595 × 595 × 914 | 6 | 4250 | 167 | |||
| 12 | 4250 | 137 | |||||
| 80–85 | > 98 | 12 × 24 × 15 | 289 × 595 × 381 | 3 | 1275 | 184 | 250 |
| 6 | 1700 | 144 | |||||
| 12 × 24 × 21 | 289 × 595 × 535 | 3 | 1700 | 187 | |||
| 6 | 2130 | 134 | |||||
| 12 × 24 × 30 | 289 × 595 × 762 | 3 | 2130 | 167 | |||
| 6 | 2130 | 92 | |||||
| 12 × 24 × 36 | 289 × 595 × 914 | 3 | 2550 | 149 | |||
| 6 | 2550 | 177 | |||||
| 24 × 24 × 15 | 595 × 595 × 381 | 6 | 2550 | 184 | |||
| 12 | 3400 | 144 | |||||
| 24 × 24 × 21 | 595 × 595 × 533 | 6 | 3400 | 187 | |||
| 12 | 4250 | 134 | |||||
| 24 × 24 × 30 | 595 × 595 × 762 | 6 | 4250 | 167 | |||
| 12 | 4250 | 92 | |||||
| 24 × 24 × 36 | 595 × 595 × 914 | 6 | 4250 | 149 | |||
| 12 | 5100 | 177 | |||||
| 60–65 | > 97 | 12 × 24 × 15 | 289 × 595 × 381 | 3 | 1700 | 157 | 250 |
| 6 | 2130 | 142 | |||||
| 12 × 24 × 21 | 289 × 595 × 535 | 3 | 1700 | 137 | |||
| 6 | 2130 | 97 | |||||
| 12 × 24 × 30 | 289 × 595 × 762 | 3 | 2250 | 132 | |||
| 6 | 2250 | 72 | |||||
| 12 × 24 × 36 | 289 × 595 × 914 | 3 | 2250 | 134 | |||
| 6 | 2250 | 75 | |||||
| 24 × 24 × 15 | 595 × 595 × 381 | 6 | 3400 | 157 | |||
| 12 | 4250 | 142 | |||||
| 24 × 24 × 21 | 595 × 595 × 533 | 6 | 3400 | 137 | |||
| 12 | 4250 | 97 | |||||
| 24 × 24 × 30 | 595 × 595 × 762 | 6 | 5100 | 132 | |||
| 12 | 5100 | 72 | |||||
| 24 × 24 × 36 | 595 × 595 × 914 | 6 | 5100 | 134 | |||
| 12 | 5100 | 75 | |||||
| 45–50 | > 96 | 12 × 24 × 15 | 289 × 595 × 381 | 3 | 1700 | 82 | 250 |
| 12 × 24 × 21 | 289 × 595 × 535 | 3 | 2250 | 95 | |||
| 24 × 24 × 15 | 595 × 595 × 381 | 6 | 3400 | 80 | |||
| 24 × 24 × 21 | 595 × 595 × 533 | 6 | 5100 | 112 | |||
| Type | Specification | |||
|---|---|---|---|---|
| Construction | Filter media | Glass fiber | ||
| Frame material | Metal frame | |||
| Operating conditions | Maximum continuous temperature | ℃ | 60 | |
| Maximum relative humidity | %RH | 100 (non-condensing) | ||
Catalogue values at rated airflow. Test data for your exact configuration is available on request.
Original Yiding catalogue (Chinese) ↗FAQ
Common questions.
Glass-fibre or synthetic pocket filter — which is better?+
Neither is better in every case. Glass fibre keeps a stable mechanical efficiency; synthetic media is tougher, handles humidity well and sheds no glass fibres. Choose by the minimum efficiency your system requires and the operating conditions.
How many pockets do I need?+
More pockets add media area, which lowers pressure drop and increases dust-holding capacity. The catalogue lists 3-pocket and 6-pocket versions for 12×24 in faces and 6- and 12-pocket versions for 24×24 in faces.
